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Water Filter Savings - Math Help
No no, this is all wrong:
You buy the pitcher and the filter for $27.50 online, using your wife's c ... |
14-6-2023 at 17:48
by: Johanson |
Purpose of thermite
averageaussie, please be careful if you are messing around with thermite as a hobby. I just had a st ... |
30-4-2023 at 17:17
by: Johanson |
Wire glue
Unionized,
1. The heat? use a proper heat sink when soldering
2. Disconnect functionality? that' ... |
25-4-2023 at 06:32
by: Johanson |
Wire glue
"Can anyone comment?"
My comment: It just looks like more gimmicky "wire glue". Just simply learn ... |
24-4-2023 at 19:25
by: Johanson |
Are plastics really difficult to recycle ?
"What are your ideas?"
I looked into this a few years ago. I will share my conclusions:
1. You' ... |
24-4-2023 at 19:12
by: Johanson |
My adventures in diy battery making - batteries are hard.
Okay I see, sacrificial Fe anode, yes that makes sense. Looks like they sinter a bunch of iron parti ... |
15-4-2023 at 19:14
by: Johanson |
Can a coffee filter be used as a membrane for electrolysis?
Try:
1. The filter paper from a wet/dry vacuum cleaner (shop vac). It's a lot thicker.
2. Unglaze ... |
9-4-2023 at 19:36
by: Johanson |
My adventures in diy battery making - batteries are hard.
Replying to 9:54 zimirken post:
Agreed, your electrical/mechanical expertise comes through loud a ... |
7-4-2023 at 12:25
by: Johanson |
My adventures in diy battery making - batteries are hard.
Rolynd is on to something (above).
You don't even need a pump.
Place 2 tanks on each side of ... |
7-4-2023 at 11:55
by: Johanson |
Sodium chromate from stainless steel and sodium percarbonate
1. What SS are you starting with? The 300-series contains Ni, while 400-series does not. That's the ... |
7-4-2023 at 11:44
by: Johanson |
My adventures in diy battery making - batteries are hard.
"You seem to have a lot of criticism but offer no alternatives"
Sorry about that, friend. Your na ... |
6-4-2023 at 07:27
by: Johanson |
My adventures in diy battery making - batteries are hard.
Nice pictures, keep them coming.
I am familiar with the ESS company you mentioned. In actuality, t ... |
4-4-2023 at 08:39
by: Johanson |
My adventures in diy battery making - batteries are hard.
Just reading your copious notes: Any particular reason you're focusing on Zn-Fe as the active materi ... |
30-3-2023 at 18:35
by: Johanson |
My adventures in diy battery making - batteries are hard.
Interesting read, thanks for all detail. Agreed, that so-called "All-Iron" battery on YouTube, with ... |
30-3-2023 at 17:53
by: Johanson |
